Double-pointed corrugated fastener



' P. STARR. DOUBLE POINTED GORRUGATED FASTENER. No. 406,545; PatentedJuIy 9, 1889.

UNITED STATES PATENT OFFICE.

FERDINAND NV. STARR, OF SPRINGFIELD, OHIO.

DOUBLE-POINTED CORRUGATED FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 406,545, dated July 9, 1889.

Application filed March 20, 1889. semi No. 304,011. n) Quinn.)

To all whom it may concern:

Be it known that I, FERDINAND W. STARR, a citizen of the United States, residing at Springfield, in the county of Clark, State of Ohio, have invented certain new and useful Improvements in Double orMultiple Pointed Corrugated Fasteners, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of my invention is the provision of an improved form of fastener for use particularly with shoes, which device is an improvement on the form of fastener patented to me January 29, 1889, No. 390,900.

To this end I construct my fastener in the manner described in the following specification, and with such novel features as will be particularly set forth in the claims at the end of the same.

In the drawings, Figure 1 is an edge view of my fastener. of my fasteners, having one corrugation only.

i Fig. 8 is a front view of one of my fasteners having more than. one corrugation, showing the notches for the purpose of holding the fasteners in the wood or leather. Fig. 4 is a front View of one of my fasteners without the notches. Fig. 5 is a front view of one of the same, having only one corrugation. Fig. 6 is a section through Fig. 3 on the line mm. Fig. 7 is an edge view of Fig. 4:, showing the form of the entering-edge. Fig. 8 is a perspective of a box fastened by means of my fasteners, showing the directions in which the same may be driven into the wood. Fig. 9 is a plan of a board or leather belt or strip formed of two pieces joined by means of my fasteners. Fig. 10 is a side view of a portion, of a shoe, showing the mode of driving and securing my fasteners in the case of use in shoe-soles. Fig. 11 is an enlarged detail of the end of one of my fasteners, showing the advantageous form of the draw cutting edge obtained by my method of forming the edges and points. Fig. 12 is a side view of one of the fasteners shown in, actual size of use. f

The device herein shown and described is also shown in my application for a method or process of making the same, filed March 20, 1889, Serial No. 304,009.

I am aware that fasteners have been made hitherto with corrugated bodies and zigzag Fig. 2 is a front view ofone entering-edges; but the use of these fastenand hence with the grain of the same, and inmy improvement I have devised a means of driving fasteners of this general'class across the grain of the wood, and hence to join wood and leather in any position desired. This object is attained by providing every corrugation with a draw cutting-edge, registering exactly with said corrugation and forming by intersection with the curved surface thereof a V-shaped entering edge or point. As thus made, the V appears in viewing the fastener from either the face or side view, as shown in Figs. 1. and 2.

A is one of my fasteners, asprovided with multiple corrugations and the holdin g-notches. Of course the number of corrugations is immaterial, and I may use fasteners of one or more corrugations, it beingas easy to produce the draw-ct ge,=which is peculiar to my form of fastener, with one corrugation as with many'. I

At A is shown a fastener having but one curve or corrugation therein.

The point which comprises the gist of my invention, produced by shaving or grinding after the corrugation of the metal, is shown and described in the application for a method or process above alluded to. By this means the bevel which is imparted to the individual corrugations gives a double-V point, as shown in the two views of the same shown in Figs. 1 and 2. The precise form of the point edges is shown in Fig. 11, where A is the cutting V, of which the edges A are either sloped straight or curved, the curved form being shown in the figure. Tlhese edges can be given a razor- 0 edge, making it possible to drive the fasteners across the grain of wood and through the toughest leather used in soles, the. This formation is all that enables me to use my fastener in this manner, as all the fasteners hitherto used with the ordinary driving-edges invariably double under when sought to be driven, and it is only found possible to drive them into the wood with the grain at the end of the piece. For the production'of the V, I bevel my fastener upon both sides, as shown in Fig. 1 at A. v

Now, my fastener may be made thus and without further elaboration, as shown in Fig. 4: at A or there may be further completion and perfection of the fastener, as shown in Fig. 3. This elaboration consists of a notching of the corrugation above the entering edge or point, as at A. This form of notch is produced with a sloping surface something like the bevel of a whistle, and the end of the notch nearest the point of the fastener is approximately perpendicular to the axis of the corrugation in order that the said end may hold in the wood or leather and prevent the falling out in case of shrinkage of the material into which the spike is driven.

As shown in Fig. 8, the fastenings may be driven into the wood across the grain squarely or diagonally, as well as with the same, and hence a box may be entirely made with my fastener, as therein shown.

One of the main uses of my fastener is in the jointing of boards or pieces of various hard materials edge to edge, as shown in Fig. 9. This is accomplished, as shown, by driving the fastener with its length inthe direction of the boards, or diagonally to the same. By this means the zigzag of the fastener is employed to hold the boards together in the.

same manner as the staple-nails already well known; but the advantage of this means of fastening over the staple is that there is no danger of the breakage or bending of the for this purpose. This spike I drive through the sole, as shown, and then turn over or upset the points in opposite direction, and thus absolutely secure the spikes within the sole, so as to prevent all possibility of the removal of the same except when desired, when the points may be straightened out again.

The actual size of these fasteners as usually employed is shown in Fig. 12.

lVhat I, claim is 1. A corrugated fastener, each corrugation of which is provided with a double point, substantially as specified.

2. A corrugated fastener, each of the corrugations of the same having a double point comprising a draw cutting-edge intermediate the points, substantially as described.

A corrugated fastener, each of the cor rugations of which is provided with a double point comprising a draw cutting-edge, and having beveled notches in the sidesof said corrugations, substantially as described.

a. A fastening device consisting of a single corrugation having a double point, substantially as described.

5. A fastening device consisting of asingle corrugation having a double point, comprising a draw cutting-edge, substantially as described.

6. A fastening device consisting of a single corrugation having a double point, comprising a draw cutting-edge intermediate said points, and having a beveled notch on the side of said spike, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FERDINAND \V. STARR.

\Vitnesses:

E. B. STOCKING, v H. SUTHERLAND. 

